CN103075594B - Telescopic and flexible flange pipe component - Google Patents
Telescopic and flexible flange pipe component Download PDFInfo
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- CN103075594B CN103075594B CN201310051644.9A CN201310051644A CN103075594B CN 103075594 B CN103075594 B CN 103075594B CN 201310051644 A CN201310051644 A CN 201310051644A CN 103075594 B CN103075594 B CN 103075594B
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- connecting leg
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- ring
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- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 22
- 239000010935 stainless steel Substances 0.000 claims abstract description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 13
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 5
- 239000010962 carbon steel Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000007373 indentation Methods 0.000 claims 1
- 238000007142 ring opening reaction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 101150096674 C20L gene Proteins 0.000 description 1
- 102220543923 Protocadherin-10_F16L_mutation Human genes 0.000 description 1
- 101100445889 Vaccinia virus (strain Copenhagen) F16L gene Proteins 0.000 description 1
- 101100445891 Vaccinia virus (strain Western Reserve) VACWR055 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Joints Allowing Movement (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention discloses a telescopic and flexible flange pipe component. Flanges are arranged at the two ends of two connected pipes; a casing pipe is arranged between two flanges; two sealing rubber rings are compressed in pipe-expanding openings at the two ends of the casing pipe; the height of the rubber rings before being compressed is 1.2 to 1.3 times that of the rubber rings after being compressed; opening separating covers are arranged between the inner end surfaces of the flanges and the rubber rings; inner bosses are arranged at the outermost ends of the flanges; inner convex rings are arranged at the middle points of the casing pipes; and the distance between the openings of the connected pipes and the inner convex rings is the moving length of the connected pipes during thermal expansion. Between the inner bosses and the opening separating covers, an annular groove is formed around the connected pipes, and a groove for clamping the rings is embedded in the outer wall of the inner pipe of the annular groove, or an outer convex ring or a cuff casing pipe is fixedly arranged on the outer wall of the annular groove. The inner diameter of the flanges is not limited, the roundness of the openings is convenient to correct, and the available pipe outer diameter is up to 57 to 426mm. The openings are sealed in a pressing connection way, so that the reliability is high, and zero water leakage is achieved. The pipe which is expanded in heat and shrunk in cold can be retracted, and can bear pulling force which is up to 100Mpa. The compression amount of the rubber rings is 20 to 30 percent, and the rubber rings can be flexible. The telescopic and flexible flange pipe component is light in weight and low in cost, and is particularly suitable for connecting thin and large-caliber stainless steel pipes. If the thickness of the wall of the pipe is increased, a material is carbon-steel, and the telescopic and flexible flange pipe component can be applied to heat pipes and boiler tubes.
Description
(1) technical field: the scalable flanged fitting deflected, relates to a kind of connection pipe fitting for large-caliber thin-walled pipeline, belongs to pipe joint or pipe fitting (F16L).
(2) background technique: along with modern development, the pipeline transporting various medium now comprises as follows: building water supply, steam line, high low pressure fuel gas transportation pipeline, airfield POL storage pipeline, the embedded underground pipeline of earthquake prone district, cross the underground pipe network that highway connects, marine piping, the pipe-line system etc. of missile site and cosmodrome, pipeline and the pipe fitting of these important places subject rising-heat contracting-cold, the medium generation leakage accident that various External Force Acting and vibration etc. cause pipeline to transport, especially it is a risk that the leakage of danger medium, for effectively ensureing the safety of people's lives and properties, the design of pipe fitting now must ensure that pipeline is under working pressure, do not leak under pipeline rising-heat contracting-cold and various External Force Acting, this just proposes pipe fitting and joint has the scalable requirement deflecting function.
The nearly the following two kinds of the scalable pipe fitting deflected in existing GB: 1. scalablely deflect threaded fitting: GB GB/T21359, is mainly used in pipeline nominal diameter within the scope of DN15-DN100mm.2. the pipe fitting of clamp band type flexible joint: GB GB/T8259-08, GB/T8260-08 and CJ156, can be used for pipeline nominal diameter within the scope of DN40-DN400mm, and the open flume type that clamp band type flexible joint is mainly used in posted sides pipeline connects.The large-caliber thin-walled pipeline of existing nominal diameter within the scope of DN40-DN400mm, according to clamp band type flexible joint, there is the problem that port is difficult to full circle in the connection because of sheet-metal duct, therefore rate of fault is more.
(3) summary of the invention:
The scalable flanged fitting deflected that the present invention proposes, solves the existing scalable pipe fitting that deflects exactly and can not solve thin walled tube large-diameter steel tube opening and be difficult to the problem that full circle causes joint seal failure rate more.Its technological scheme is as follows:
The scalable flanged fitting deflected, comprising: two are filled a flange respectively by connecting leg two ends, the fastening nut of two flanges, and two flange shaft are to being provided with sleeve pipe, and sleeve pipe two ends dress sealing rubber ring, is characterized in that:
1) the axial two-port of sleeve pipe has double over, and after compression, sealing rubber ring to be placed in double over and both cross-section areas are equal, before sealing rubber ring compression height X4 be taken as into double over height X3B 1.2-1.3 doubly; Perforate is established to isolate lid 2 between two flange interior edge faces and sealing rubber ring exterior edge face; Two flange outermost end have can by the inner convex platform of connecting leg surface sliding; Sleeve pipe axial centre is limited and is made by the center internal projecting ring of connecting leg larger thermal expanding displacement, by connecting leg moving long E6 when being heat expansion by connecting leg port to center internal projecting ring axial distance; 2) inner convex platform and perforate isolation lid axially between, flange endoporus with is formed circular groove by connecting leg periphery, in circular groove length, pressed groove by connecting leg outer wall, in groove, embed opening steel wire clamping ring; Or the cross section of directly being fixed by connecting leg outer surface in circular groove length is square outer bulge loop; Snap ring or outer bulge loop removable length in circular groove length is equal with by connecting leg moving long E6.
Above-mentioned depth of groove h6 is taken as and equals snap ring cross sectional radius R5.Between above-mentioned snap ring 5 external diameter and circular groove internal diameter, clearance delta 5 is selected as follows: snap ring cross sectional radius R5 > Δ 5 > 0.
The scalable flanged fitting deflected, comprising: two are filled a flange respectively by connecting leg two ends, the fastening nut of two flanges, and two flange shaft are to being provided with sleeve pipe, and sleeve pipe two ends dress sealing rubber ring, is characterized in that:
1) the axial two-port of sleeve pipe has double over, and after compression, sealing rubber ring to be placed in double over and both cross-section areas are equal, before sealing rubber ring compression height X4 be taken as into double over height X3B 1.2-1.3 doubly; Perforate is established to isolate lid 2 between two flange interior edge faces and sealing rubber ring exterior edge face; Two flange outermost end have can by the inner convex platform of connecting leg surface sliding; Sleeve pipe axial centre is limited and is made by the center internal projecting ring of connecting leg larger thermal expanding displacement, by connecting leg moving long E6 when being heat expansion by connecting leg port to center internal projecting ring axial distance; 2) inner convex platform interior edge face and by connecting leg port axially between, be welded and fixed a cuff sleeve pipe by connecting leg outer surface.
Above-mentioned by connecting leg, flange, clamping bolt, flange inner convex platform, perforate isolation lid, sleeve pipe, center internal projecting ring, snap ring, outer bulge loop and cuff sleeve pipe stainless steel all can be adopted to make.
The scalable flanged fitting deflected that above-mentioned stainless steel makes, its Optimal Parameters and size Selection as follows: be respectively 57 to by connecting leg external diameter φ 6, 76.2, 89, 108, 133, 159, 219, 273, 325, 377, when 426, it is by connecting leg wall thickness t6, flange outer diameter D1, flange thickness t1, flange inner convex platform thickness t1.1, two flange clamping bolt diameter phi 1A, circumference Number of Bolts n1A, bolt-center diameter D1A, perforate isolation lid outer diameter D 2, casing length L3, casing wall thickness t3, cannula center internal projecting ring thickness E 3A, height X4B after sealing rubber ring compression, sealing rubber ring is thickness Y4B after the compression of double over port, snap ring during heat expansion, outer bulge loop or cuff thin sleeve pipe moving long E6, get the numerical value of sequence number 1 in table 1, sequence number 2, sequence number 3, sequence number 4, sequence number 5, sequence number 6, sequence number 7, sequence number 8, sequence number 9, sequence number 10 or sequence number 11 respectively.Table 1mm
If when being chosen as the 1.6-2.8 times of stainless steel pipe thickness in table 1 above-mentioned by connecting leg wall thickness t6 and casing wall thickness t3, tube material elects carbon steel as.The double over 3B of the axial two-port of above-mentioned sleeve pipe has following form: 1. uncovered shape (see 3B in Fig. 3).2. toroidal.3. arc horn mouth.4. round speaker mouth.The double over shape that can adapt by seal ring formal character.Such as: with trapezoidal and elliptical seal ring adapt for uncovered shape double over (see Fig. 3-Fig. 5).
Beneficial effect of the present invention:
1) adopt flanged fitting, can do very large because flange inner diameter is not limited, can be used for major diameter by connecting leg.2) structure of the present invention conveniently can correct major diameter light wall pipe port full circle degree and gain in strength, and has following facility: 1. pressed groove, the outer bulge loop of welding (belonging to short sleeve full circle) or welding cuff sleeve pipe etc. by connecting leg excircle.2. double over is processed.3. casing wall thickness t3 is selected to be greater than by connecting leg wall thickness t6.Solve thin-walled heavy caliber port and be difficult to full circle and the many problem of causing trouble rate, pipe fitting of the present invention can be used for by the external diameter in connecting leg road up to 57-426mm thus, even higher, and thickness of pipe wall t6 can be controlled in 1-8mm.2) adopt flange to crimp in double over by perforate isolation lid by rubber seal, not only have full circle effect, and can sealability be improved, almost can accomplish 0 water leakage ratio.3) this flanged fitting carries temperature compensation structure, and realizing pipeline can, with to expand with heat and contract with cold and flexible, seal not impaired because expanding with heat and contract with cold.The component that temperature correction relates to and parameter are: center internal projecting ring 3A, circular groove 1B, by connecting leg moving long E6, groove 6.1, snap ring 5, outer bulge loop 7 and cuff sleeve pipe 8 etc.Extensible E6 can reach 8-28mm(in table 1).4) when being met cold events by connecting leg, snap ring is stuck in inner convex platform inner port 1.2 place (see figure 2), controls tubing not by pull-off.Adopt the structure of outer bulge loop and cuff sleeve pipe just can solve excessive pulling force by the problem of pull-off, even if there is the pull-out force of 100Mpa under any condition, make thin-wall stainless steel start plastic deformation, still can not by pull-off by connecting leg.5) decrement adopting interference fit, sealing rubber ring between sealing rubber ring and double over is 20-30%, and pipe fitting achieves flexible.Correspondence 11 kinds is by connecting leg external diameter φ 6, and the design parameter selected by table 1, the flexible angle α numerical value that measurement is determined is in table 2.Table 2mm
| φ 6 | 57 | 76.2 | 89 | 108 | 133 | 159 | 219 | 273 | 325 | 377 | 426 |
| α | 7.8 | 7.0 | 6.2 | 5.4 | 4.6 | 4.4 | 3.8 | 3.2 | 2.8 | 2.4 | 2.2 |
As can be seen from Table 2 as external diameter more greatly Φ 6=426(and nominal diameter DN400) pipe fitting flexible angle α also can be greater than 2.2 °, this is that other pipe fittings are all difficult to accomplish.6) lightweight, cost is low: for common Φ 6=426 tubing, design parameter is in table 1 sequence number 11, the weight of the scalable flanged fitting deflected of this cover is only equivalent to (comprising sleeve pipe) weight of 3 flanges, it engineering cost is acceptable, from this angle, this scalable flanged fitting deflected can be promoted on a large scale.7) size of the stainless steel compact flange structure that the size of the steel flange shown in table 1 is to provide, its advantage is: 1. weight is the 1/4-2/3 of same model flange weight.2. compact flange radial width is little, and nut is closer to tube wall, and the arm of force is little, and screw rod bears axial water pressure power and destroyed power needs larger.Refer to Chinese invention patent < high pressure Stainless Steel Tube little flange connect pipe fitting > (ZL031172172).7) when being chosen as the 1.6-2.8 times of stainless steel pipe thickness in table 1 by connecting leg wall thickness t6 and casing wall thickness t3, flanged fitting material all elects carbon steel as, and what can solve boiler tube and thermal pipe like this flexibly connects and realize scalable deflecting.Can be used for boiler tube and thermal pipe.
(4) accompanying drawing explanation
The structure positive view (snap ring indent structure) of Fig. 1 embodiment 1.
Fig. 2 Fig. 1 partial enlarged drawing I (circular groove 1B, snap ring 5, groove 6.1 and inner convex platform 1.1 etc.)
Fig. 3 Fig. 1 partial enlarged drawing II (sleeve pipe uncovered shape double over 3B and the rear sealing rubber ring 4B of compression).
Ladder-shaped sealing ring 4 cross-sectional view before Fig. 4 compression.
Elliptical seal ring 4 cross-sectional view before Fig. 5 compression.
The structure positive view (square evagination ring structure) of Fig. 6 embodiment 2.
Fig. 7 Fig. 6 partial enlarged drawing III (only drawing outer bulge loop 7 position view).
The structure positive view (cuff sleeve structure) of Fig. 8 embodiment 3.
Fig. 9 Fig. 8 partial enlarged drawing IV (only drawing the signal of cuff sleeve position).
(5) embodiment
Embodiment 1: see Fig. 1-see Fig. 5.
See Fig. 1, two are filled the fastening nut 1A of a flange 1, two flange respectively by connecting leg 6 two ends tightens up.
Sleeve pipe 3 is provided with between two flanges 1 are axial.See Fig. 3, the axial two-port of sleeve pipe 3 has uncovered shape double over 3B, after compression, sealing rubber ring to be placed in double over and both cross-section areas are equal, i.e. sealing rubber ring height X4B=double over height X3B after compression, thickness Y4B after the compression of thickness Y4B=double over port after sealing rubber ring compression.See Fig. 4, Fig. 5, be highly X4 before trapezoidal or ovaloid seal rubber ring 4 compresses, get X4 and equal the 1.2-1.3 of double over height X3B doubly, just obtaining seal compression is 20-30%.
See Fig. 1, between two flange interior edge faces and sealing rubber ring exterior edge face, establish perforate to isolate lid 2.Two flange outermost end have when being expanded with heat and contract with cold by connecting leg can by the inner convex platform 1.1 of connecting leg surface sliding.Sleeve pipe axial centre is limited and is made by the center internal projecting ring 3A of connecting leg larger thermal expanding displacement, by connecting leg moving long E6 when being heat expansion by connecting leg port 6.2 to center internal projecting ring axial distance.
See Fig. 1, Fig. 2, inner convex platform 1.1 and perforate isolation lid 2 axially between, flange endoporus with is formed circular groove 1B by connecting leg periphery, in circular groove length, pressed groove 6.1 by connecting leg outer wall, in groove, embed opening steel wire clamping ring 5.In circular groove length, the removable length of snap ring is equal with by connecting leg moving long E6.See Fig. 2,1. get depth of groove h6=snap ring cross sectional radius R5, to ensure that snap ring is fixed tightly in groove and can not ejects, maximum by the anti-pull-out force of connecting leg.2. R5 > Δ 5 > 0 is got, wherein: Δ 5 is gap between snap ring 5 external diameter and circular groove internal diameter.R5 is snap ring cross sectional radius, can ensure that snap ring can not eject or axial float in circular groove 1B from groove by the resistance of circular groove and snap ring with being moved by connecting leg.Each component of embodiment 1 is all adopted stainless steel to make by connecting leg 6, flange 1, fastener bolt 1A, flange inner convex platform 1.1, perforate isolation lid 2, sleeve pipe 3, cannula center internal projecting ring 3A, snap ring 5, and the selection of the dimensional parameters of its 11 kinds of specifications is in table 1.Here no longer repeat.
See Fig. 1, Fig. 2, this pipe fitting is installed and thermal compensation working procedure: 1) two by after the port of connecting leg 6 cover upper flange 1, connecting leg is pressed groove 6.1, is packed with opening steel wire clamping ring 5 in groove, make snap ring be close to inner convex platform inner side surface 1.2(and see Fig. 2 two).2) seal ring 4 is loaded in the double over 3B of sleeve pipe two ends.3) inside two flanges, the sleeve pipe 3 of lid 2 and tape loaded seal ring is isolated by the cover perforate of connecting leg 6 periphery.
4) fastening nut by perforate isolation lid by seal ring tight compression by the flared tube of connecting leg periphery, installation.5) when two by connecting leg
6 by thermal stretching, by connecting leg port 6.2 and snap ring simultaneously to the inside movable length be E6.When being met cold events by connecting leg, snap ring is stuck in inner convex platform inner side surface 1.2 place, controls by connecting leg not by pull-off.Prevent damage sealing of expanding with heat and contract with cold.
Embodiment 2: see Fig. 6-Fig. 7, Fig. 3-Fig. 5.Except following characteristics is different from embodiment 1, all the other structures, parameter, installation and thermal compensation working procedure are all identical: the snap ring 5 in embodiment 1 and groove 6.1 are cancelled, directly be welded and fixed square outer bulge loop 7 in this position by connecting leg periphery, can be welded on by connecting leg after cover upper flange.See Fig. 7, square outer bulge loop 7 width t7 is chosen as and is more than or equal to steel wire clamping ring radius.Square outer bulge loop 7 can be chosen according to Fig. 6 structure as follows apart from by the distance E7 of connecting leg port 6.2:
E
7=0.5（L
3-E
3A）-E
6+t
2+E
6=0.5（L
3-E
3A）+t
2。
Wherein, t
2for perforate isolation lid 2 thickness (Fig. 6).L3 is that sleeve pipe 3 is long.E
3Afor the thick (see figure 1) of internal projecting ring 3A.T
2, L3 and E
3Athe visible table 1 of optimized dimensions.
Embodiment 3: see Fig. 8-Fig. 9, Fig. 3-Fig. 5.Except following characteristics is different from embodiment 2, all the other structures, parameter, installation and thermal compensation working procedure are all identical: see Fig. 8, inner convex platform 1.1 interior edge face 1.2 and by connecting leg port 6.2 axially between, fixed a cuff sleeve pipe 8 by connecting leg 6 outer surface.See Fig. 9, cuff sleeve pipe 8 wall thickness t8 can be taken as the wall thickness t6 equaled by connecting leg 6.Cuff sleeve pipe 8 length E8 can choose as follows according to Fig. 6 and Fig. 8 structure:
E
8=E
7+t
7=0.5（L
3-E
3A）+t
2+t
7。
Embodiment 4: except following characteristics is different from embodiment 1, all the other are identical: be chosen as the 1.6-2.8 of stainless steel pipe thickness in table 1 doubly by connecting leg wall thickness t6 and casing wall thickness t3, flanged fitting material all elects carbon steel as.What can solve boiler tube and thermal pipe like this flexibly connects and realizes scalable deflecting.Can be used for boiler tube and thermal pipe.
Claims (6)
1. the scalable flanged fitting deflected, comprise: the sealing rubber ring (4) that the fastening nut (1A) of two flanges (1) filled respectively by connecting leg (6) two ends, two flanges, two flange shaft fill to a sleeve pipe be provided with (3), sleeve pipe two ends, it is characterized in that:
1) the axial two-port of sleeve pipe has double over (3B), and after compression, sealing rubber ring to be placed in double over and both cross-section areas are equal, height X before sealing rubber ring compression
4be taken as double over height X
3B1.2-1.3 doubly, establish perforate to isolate between two flange interior edge faces and sealing rubber ring exterior edge face to cover (2), two flange outermost end have can by the inner convex platform of connecting leg surface sliding (1.1), sleeve pipe axial centre is limited and is made by the center internal projecting ring (3A) of connecting leg larger thermal expanding displacement, by connecting leg moving long E when being heat expansion by connecting leg port (6.2) to center internal projecting ring axial distance
6;
2) inner convex platform and perforate isolation lid axially between, flange endoporus with formed circular groove (1 by connecting leg periphery
b), in circular groove length by connecting leg outer wall indentation groove (6.1), embed opening steel wire clamping ring (5) in groove, the degree of depth h of groove
6=opening steel wire clamping ring cross sectional radius R
5; Or the cross section of directly being fixed by connecting leg outer surface in circular groove length is square outer bulge loop (7), outer bulge loop (7) distance is by the distance E of connecting leg port (6.2)
7choose as follows: E
7=0.5 (L
3-E
3A)-E
6+ t
2+ E
6=0.5 (L
3-E
3A)+t
2, wherein: t
2for perforate isolation lid (2) thickness, L
3for sleeve pipe (3) is long, E
3Afor internal projecting ring (3A) is thick; Opening steel wire clamping ring or outer bulge loop in circular groove length removable length with by connecting leg moving long E
6equal.
2., by flanged fitting described in claim 1, it is characterized in that describedly all being adopted stainless steel to make by connecting leg, flange, clamping bolt, flange inner convex platform, perforate isolation lid, sleeve pipe, center internal projecting ring, opening steel wire clamping ring, outer bulge loop.
3. the scalable flanged fitting deflected, comprise: the sealing rubber ring (4) that the fastening nut (1A) of two flanges (1) filled respectively by connecting leg (6) two ends, two flanges, two flange shaft fill to a sleeve pipe be provided with (3), sleeve pipe two ends, it is characterized in that:
1) the axial two-port of sleeve pipe has double over (3B), and after compression, sealing rubber ring to be placed in double over and both cross-section areas are equal, height X before sealing rubber ring compression
4be taken as double over height X
3B1.2-1.3 doubly, establish perforate to isolate between two flange interior edge faces and sealing rubber ring exterior edge face to cover (2), two flange outermost end have can by the inner convex platform of connecting leg surface sliding (1.1), sleeve pipe axial centre is limited and is made by the center internal projecting ring (3A) of connecting leg larger thermal expanding displacement, by connecting leg moving long E when being heat expansion by connecting leg port (6.2) to center internal projecting ring axial distance
6;
2) inner convex platform interior edge face (1.2) and by connecting leg port (6.2) axially between, be welded and fixed a cuff sleeve pipe (8) by connecting leg outer surface, cuff casing wall thickness t
8equal by the wall thickness t of connecting leg (6)
6.
4., by flanged fitting described in claim 3, it is characterized in that describedly all being adopted stainless steel to make by connecting leg, flange, clamping bolt, flange inner convex platform, perforate isolation lid, sleeve pipe, center internal projecting ring and cuff sleeve pipe.
5., by flanged fitting described in claim 4, it is characterized in that by connecting leg (6) external diameter Φ
6be respectively 57,76.2,89,108,133,159,219,273,325,377,426mm time, it is by connecting leg wall thickness t
6, flange outer diameter D
1, flange thickness t
1, flange inner convex platform thickness t
1.1, flange clamping bolt diameter of phi
1A, circumferential Number of Bolts n
1A, bolt-center diameter D
1A, perforate isolation lid outer diameter D
2, casing length L
3, casing wall thickness t
3, center internal projecting ring thickness E 3A, height X4B, sealing rubber ring opening steel wire clamping ring, outer bulge loop or cuff thin sleeve pipe moving long E6 when thickness Y4B, heat expansion after the compression of double over port after sealing rubber ring compression; Get the numerical tables 1 (mm) of sequence number 1 in table 1, sequence number 2, sequence number 3, sequence number 4, sequence number 5, sequence number 6, sequence number 7, sequence number 8, sequence number 9, sequence number 10 or sequence number 11 respectively
6., by flanged fitting described in claim 5, it is characterized in that by connecting leg wall thickness t
6with casing wall thickness t
3be chosen as the 1.6-2.8 of stainless steel pipe thickness in table 1 doubly, tube material elects carbon steel as.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051644.9A CN103075594B (en) | 2013-02-17 | 2013-02-17 | Telescopic and flexible flange pipe component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051644.9A CN103075594B (en) | 2013-02-17 | 2013-02-17 | Telescopic and flexible flange pipe component |
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| Publication Number | Publication Date |
|---|---|
| CN103075594A CN103075594A (en) | 2013-05-01 |
| CN103075594B true CN103075594B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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| Country | Link |
|---|---|
| CN (1) | CN103075594B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0472379A1 (en) * | 1990-08-23 | 1992-02-26 | Victaulic Plc | Pipe couplings |
| CN2849405Y (en) * | 2005-09-27 | 2006-12-20 | 罗建文 | Flange positioning sealed flexible expansion joint |
| CN201071992Y (en) * | 2007-07-06 | 2008-06-11 | 王毅 | Flexible connector of blast pipe |
| CN203223677U (en) * | 2013-02-17 | 2013-10-02 | 廖仲力 | Telescopic and flexible flange pipe fitting |
-
2013
- 2013-02-17 CN CN201310051644.9A patent/CN103075594B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0472379A1 (en) * | 1990-08-23 | 1992-02-26 | Victaulic Plc | Pipe couplings |
| CN2849405Y (en) * | 2005-09-27 | 2006-12-20 | 罗建文 | Flange positioning sealed flexible expansion joint |
| CN201071992Y (en) * | 2007-07-06 | 2008-06-11 | 王毅 | Flexible connector of blast pipe |
| CN203223677U (en) * | 2013-02-17 | 2013-10-02 | 廖仲力 | Telescopic and flexible flange pipe fitting |
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| Publication number | Publication date |
|---|---|
| CN103075594A (en) | 2013-05-01 |
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Address after: 610061 No.3, 8th floor, building 1, No.12, South 1st section of 1st ring road, Wuhou District, Chengdu City, Sichuan Province Patentee after: Liao Zhonglie Address before: No.3, 8th floor, building 1, No.12, South 1st ring road, Wuhou District, Chengdu, Sichuan 610061 Patentee before: Liao Zhongli |
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Effective date of registration: 20210201 Address after: No.109, Tuqiao Quanxing Road, Jinniu District, Chengdu, Sichuan 610000 Patentee after: SICHUAN MINSHENG STAINLESS STEEL PIPES Co.,Ltd. Address before: 610061 No.3, 8th floor, building 1, No.12, South 1st section of 1st ring road, Wuhou District, Chengdu City, Sichuan Province Patentee before: Liao Zhonglie |
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